Finding the Fourth Proportional to 9,428.56, 14,143.12 and 4,498.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,428.56 : 14,143.12 = 4,498.72 : x
2. Step 2: Convert to fraction form
   9,428.56/14,143.12 = 4,498.72/x
3. Step 3: Cross multiply
   9,428.56x = 14,143.12 × 4,498.72
4. Step 4: Simplify right side
   9,428.56x = 63,625,936.81
5. Step 5: Solve for x
   x = 63,625,936.81/9,428.56
6. Step 6: Final answer
   x = 6,748.21